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quant-ph2004
Quantum diffusion in the quasiperiodic kicked rotor
Hans Lignier, Jean Claude Garreau, Pascal Szriftgiser +1
We study the mechanisms responsible for quantum diffusion in the quasiperiodic kicked rotor. We report experimental measurements of the diffusion constant on the atomic version of…
quant-ph2004
Mechanism and Lineshapes of Sub-Fourier Resonances
Hans Lignier, Jean Claude Garreau, Pascal Szriftgiser +1
Subtle internal interference effects allow quantum-chaotic systems to display "sub-Fourier" resonances, i.e. to distinguish two neighboring driving frequencies in a time shorter th…
quant-ph2001
Raman subrecoil spectroscopy of cold cesium atoms
J. Ringot, P. Szriftgiser, J. C. Garreau
We describe and characterize a setup for subrecoil stimulated Raman spectroscopy of cold cesium atoms. We study in particular the performances of a method designed to active contro…